BOSTON - USA Today - The city and its suburbs remain in lockdown Friday afternoon as a massive manhunt combs the area for the teenaged surviving suspect in the Boston Marathon bombings.
Authorities are focusing a house-to-house sweep in Watertown for Dzhokhar Tsarnaev, 19, the brother of Tamerlan Tsarnaev, 26, who died following a dramatic early Friday morning shootout with police.
Police say Dzhokhar is armed and fear he is wearing an explosive vest. Authorities no longer believe there are other accomplices. The official, who is not authorized to comment publicly, said investigators have been running down leads on possible associates of the suspect bombers, all of which have produced no other suspects.
During the overnight and early-morning pursuit of the suspects, the official said authorities recovered a handful of improvised explosive devices (IEDs), including one in the possession of Tamerlan Tsarnaev. All of the devices appeared to be homemade "fused'' explosives.
Police took Tamerlan Tsarnaev to Beth Israel Deaconess Medical Center following the gunfight with police at about 1:20 a.m. Friday. Dr. David Schoenfeld said medical personnel tried to revive him. He had multiple gunshot wounds and burn and gaping blast wounds that appeared to have come from an explosive device strapped to his body.
The brothers' acts continue to befuddle authorities, family and friends that know them. Students at the University of Massachusetts Dartmouth, where Dzhokar was a student, say they saw him on campus following Monday's bombings.
lnvestigators have not found any formal links so far to an international terror group.
Dzhokar's escape prompted Massachusetts Gov. Deval Patrick to order the city of Boston and its surrounding suburbs locked down and its residents to remain in their homes. The Boston Red Sox and Bruins postponed Friday night games. Businesses in Watertown, Newton, Waltham, Belmont, Cambridge and the Alston and Brighton neighborhoods of Boston were requested to remain closed and residents to remain indoors until the suspect is caught. Massachusetts shut down all mass transit, including buses and trains, in Boston and surrounding suburbs, Kurt Schwartz, director of Massachusetts Emergency Management Agency said.
The Tsarnaev family is believed to have moved to the USA in 2003. They had lived in Kazakhstan for several years after fleeing war-torn Chechnya. Tamerlan attended Bunker Hill Community College in nearby Charlestown as a part-time student for three semesters from 2006 to 2008. He studied accounting.
In an telephone interview from Russian with the Associated Press, the brothers' father, Anzor Tsarnaev, said Dzhokhar is "a true angel" and "an intelligent boy." In subsequent media interviews, he said his sons had been framed for Monday's bombings.
Ruslan Tsarni, an uncle who had not spoken to his brother's sons since December 2005, urged Dzhokhar to turn himself in to authorities. Meeting with reporters Friday outside his home in Montgomery County, MD., Tsani said he believed the brothers may have been recently "radicalized." Tsarni says he was unaware of any military or weapons training they may have received. Tsarni called the brothers "losers" and said they had brought his family shame.
Their names were not known to law enforcement officials before the bombings, which killed three people and wounded 176. Authorities are reviewing the brothers' possible ties to Chechnya - an area of Russia plagued by Islamic insurgency - a law enforcement official who is not authorized to comment publicly told USA TODAY.
Dzhokhar Tsarnaev is believed to have dropped a backpack laden with explosives at the site of Monday's second explosion. He was pictured wearing a white baseball cap in video images released by the FBI Thursday. His page on the Russian social networking site Vkontakte says he attended Cambridge Rindge and Latin School, graduating in 2011, the year he won a $2,500 college scholarship from the city of Cambridge. On the website, his world view is described as "Islam" and he says his personal goal is "career and money."
Larry Aaronson, a neighbor and retired history teacher at Cambridge Rindge and Latin School, got to know Dzhokhar while taking photos of the high school wrestling team and other school activities.
"It's completely out of his character," Aaronson said of Dzhokhar's alleged role in the bombings. "Everything about him was wonderful. He was completely outgoing, very engaged, he loved the school. He was grateful not to be in Chechnya."
Dzhokhar was not overtly political or religious, Aaronson says. "He spoke and acted like any other high school kid."
WATERTOWN, Mass. (AP) - Police say one of two suspects in the shooting of an MIT police officer is dead and a massive manhunt is underway for another, who is tied to the Boston Marathon bombing.
Shortly after the MIT officer was shot Thursday night, police got a report of a carjacking in Cambridge, just outside Boston.
Police say of the at-large suspect, "We believe this to be a terrorist."
The FBI is investigating whether the fatal shooting of a campus police officer at the Massachusetts Institute of Technology and gunfire and explosions in a nearby town are related to the Boston Marathon bombings.
A Massachusetts State Police spokesman said early Friday that one person suspected in the gunfire and explosions has been accounted for and one is at large.
The FBI said it is working with local authorities to determine what happened.
The MIT shooting on the Cambridge campus Thursday night was followed by reports of violence in nearby Watertown, about 10 miles west of Boston.
State police spokesman David Procopio said there is a "strong possibility" the incidents are related.
The MIT officer had been responding to report of a disturbance Thursday night when he was shot multiple times, according to a statement from the Middlesex district attorney's office and Cambridge police. It said there were no other victims.
In Watertown, witnesses reported hearing multiple gunshots and explosions at about 1 a.m. Friday. Dozens of police officers and FBI agents were in the neighborhood and a helicopter circled overhead.
State police spokesman David Procopio said, "The incident in Watertown did involve what we believe to be explosive devices possibly, potentially, being used against the police officers."
Boston cab driver Imran Sais said he was standing on a street corner at a police barricade across from a diner when he heard an explosion.
"I heard a loud boom and then a rapid succession of pop, pop, pop," he said. "It sounded like automatic weapons. And then I heard the second explosion."
He said he could smell something burning and advanced to check it out but area residents at their windows yelled at him, "Hey, it's gunfire! Don't go that way!"
MIT said right after the 10:30 p.m. shooting that police were sweeping the campus in Cambridge and urged people to remain indoors. They urged people urged to stay away from the Stata Building, a mixed-use building with faculty offices, classrooms and a common area.
Hours later, MIT, which has about 11,000 students, said the campus was clear but the shooter was still on the loose.
The FBI has released images of two suspects connected to the Boston Marathon Bombing.
Officials say the suspects are armed and dangerous and no one should approach them or try to apprehend them.
The FBI says no piece of information is too small.
More FBI pictures, including higher quality photos can be found here.
BOSTON -- ABC News -- Authorities are close to identifying a suspect in the deadly Boston Marathon bombing, an official in Boston told ABC News.
ABC News' Boston affiliate, WCVB, reported a source had said a suspect has already been identified and an arrest is imminent. Surveillance video taken from cameras at a Lord & Taylor along the marathon route helped identify the suspect, WCVB said.
A pair of blasts erupted Monday afternoon near the finish line of the Boston Marathon, killing three people and injuring more than 170 others.
Authorities said they have been analyzing thousands of photos of the event and tracking down as many leads since the bombing. Tuesday ABC News reported part of a pressure cooker bomb had been recovered from the scene with wires, shrapnel and a circuit board. That evidence has been sent to the FBI lap in Quantico, Virginia for analysis, officials said.
BEIJING (AP) — A state-run Chinese newspaper says the third person killed in the Boston Marathon bombings is a Chinese graduate student at Boston University originally from China's northeastern city of Shenyang.
The Shenyang Evening News reported Wednesday on its official Twitter-like microblog account that the victim is named Lu Lingzi. An editor at the newspaper says that Lu's father confirmed his daughter's death when reporters visited the family home.
The Chinese Foreign Ministry and Consulate General in New York are not releasing the victim's name at the request of the family. But on Tuesday, Boston media quoted a Chinese Consulate General official as saying Chinese national Lu Lingzi was missing in the wake of the bombings that killed three and wounded more than 170 people.
Authorities are taking extra security precautions around St. Louis in light of the Boston bombings.
St. Louis Police and Metro Transit authorities say they'd added security measures downtown Tuesday during both the Mayor's inauguration and the Blues game. But they say there have been no specific threats made. The extra measures are precautionary.
There was a stepped up police and security presence both inside and outside Scottrade Center Tuesday night. Hockey fans endured long lines to get inside, passing through extra screenings that included metal detectors and bag searches.
Just before the Blues game against the Vancouver Canucks, the team paid tribute to the Boston victims with a moment of silence.
NEW YORK (AP) — The New York Yankees paid tribute to victims of the Boston Marathon bombings by playing the Fenway Park favorite "Sweet Caroline" at Yankee Stadium on Tuesday night.
Other teams around the majors did the same. The popular sing-along song has been featured at Boston Red Sox home games since 2002.
The Yankees honored Boston, home of their longtime rivals, by playing the Neil Diamond hit over the public-address system after the third inning against Arizona. Yankees fans sang along, and some people in the crowd wore Red Sox hats and jerseys.
"Thank you NY Yankees for playing 'Sweet Caroline' for the people of Boston," Diamond wrote on his Twitter page. "You scored a home run in my heart. With respect, Neil (hashtag)OneBoston."
A ribbon was shown on the scoreboard displaying the insignia of the Red Sox and Yankees and the words: "New York stands with Boston ... Pray for Boston."
There also was a pregame moment of silence. A message that read "United We Stand" showing the Red Sox and Yankees logos was posted on an electronic board atop the ballpark.
Earlier in the day, Yankees manager Joe Girardi said it was time to "put the baseball teams aside" and recognize "we're all behind the people in Boston."
"Sweet Caroline" also was played at Marlins Park, Dodger Stadium and in Cleveland, where the Red Sox beat the Indians 7-2.
"That was a very classy touch," said Indians skipper Terry Francona, who managed the Red Sox for eight years.
WASHINGTON (AP) - A person briefed on the Boston Marathon investigation says the explosives were in 6-liter pressure cookers and placed in black duffel bags.
The person says the explosives were placed on the ground and contained shards of metal, nails and ball bearings. The person spoke on the condition of anonymity because the investigation was ongoing.
The person says law enforcement officials have some of the bomb components but did not yet know what was used to set off the explosives.
President Barack Obama said Tuesday the bombings were an act of terrorism but investigators do not know if they were carried out by an international or domestic organization, or perhaps by a "malevolent individual."